Interesting. I have read that with DSI ducers that you want to shy away from thru hull install. I saw a thread from the past on here concerning a mount that threads into the rear drain plug area and provides a 1" ram connection to mount externally. I am definitely interested in that route but am not sure where to get the part.

I know that RAM has a transducer mount as well as one for the Structure Scan. I also know that Railblazer are in the process on getting a transducer mount as well that flips up for storage & connects via there Star mounting system. This looks to be a great way of mounting Transducers & also allow to change its position on different Railblazer mounts The Railblazer is also going to be able to be extended so you can adjust it to suit our needs. I know this after contacting Railblaza as Im just installing a HDS9 Gen2 Touch with Structure Scan & they were very helpful to accommodate to anything we need. They also have Mounts for my Lowrance & its looks tough ass. Not going to break that.Good bunch of guys

Whoever told you that DSI transducers don't work thru-hull doesn't know what they are talking about. I Side scan ones do need to be out in the open though.

So you CAN fit the transducer inside the hull, either set in a bed of silicone (a "dry mount"), or else in a "dam" full of water ( a "wet mount"), Just make sure there are no air bubbles below the transducer.

The normal site for the transducer is just in front of the mast V brace, so turbulance from the Miragedrive will have no effect.